Display device



P. JYMESSER..

DISPLAY. DEVICE.

vPFUCATION FILED MAR. 8, 1920. l l' Lgnnglolg.` Patented Oct. 3, 1922.

2 SHEETS-SHEET HEL wn'nEssEs P. J. MESSER.

D|SPLAY DEVICE..

APPLlcATloN FILED Mm a, 1920.

2 SHEETS-SHEET 2.

- ma W.

Patented 3, 1922.

entran lstares' PETER J'. MESSER, OF OLEAN, NEW YORK.

' DISPLAY DEVICE.

Application filed March 8, 1920. Serial No. 364,333.

T0 @ZZ whom it amy concern f Be it known that I, PETER J. `lt/iiissnn, acitizen 0f the United States, and a resident of Olean, in the county ofCattaraugus and State of New York, have made a new and usefulImprovement in Display. Devices, of which the following is aspecification.

My invention relatesfto display devices and consists in mechanismiiforintermittently rotating a display platform. I desire to increasethe capacity of show windows by presenting one display of goods to the`passersby for a definite period 'andthen substitute another display ofgoods. I show my device as applied to a show window/platform upon whichthe goods may be placed .and which may be` intermittently,rotated topresent different articles or groups of articles to the show window.

ln `the accompanying drawings illustrating a preferred construction andapplication, i

Figure 1 is a horizontal.sectionthrough a show window and a plan view ofmy platform which is broken away in part to more clearly set forth itsmechanism; Fig. 2 is a partial side View of the platform and anelevation of its operating mechanism; Fig. 3 is a vertical sectionthrough the lower mechanism and is taken on the line 3 3 of Fig. 1 butdrawn to alarger scale; Fig. 4 is a verticalsection at right angles toFig. 3 and taken on line 4-4 thereof, and Fig. 5 is a side view on line5 5 of Fig. 4. f

1n Fig. 1 the circular platformd mounts three vertical partitions 2, 3and 4 which divide the platform into sectors each forming substantiallyone third of the total area. The sector between partitions 2 and 3 ispresented to the show windows 5 and 6 while the other two sectors aretemporarily hidden from the view of persons outside of these windows.Platform 1 is adapted to rotate about a central point and its under sideis provided with an internal gear 7, the teeth of which facehorizontally. Meshing with this gear is a pinion 8 iixedy mounted on avertical shaft 9 which extends downwardly and is journaled in spaced.bearings 10 and 11 in a frame casting 12 the base of which is seatedupon a foundation such as the basement floor of a building.

F rame 12 mounts a motor 13 and the motor spindle 14 carries a worm 15which drives n worm wheel 16 rotatably mounted on shaft 9. illheel 16has an integral portion 17 which is provided with upwardly `facing teeth18. E Splined on shaft 9 is a collar 19 providedwith downwardly facingteeth 20. Teeth 18 and 2O form clutch means for locking shaft 9 to wheel16 and thereby providing rotation `of the shaft and platform i To engageand disengage thisolutch, and

`thereby provide intermittent movement of tlie platform,l providemechanism driven by wheel 16 through bevel gears 21 and 22, the formerafxed to wheel 16 and the latter fixed to ahorizontalshaft 23 journaledin frame 12. A worm 24 is iixedly mounted on shaft 23 and drives a wormwheel 25 rotatably mounted on a horizontal shaft 26 extending atrightangles to shaft 23 and above Vsame and also journaled in frame 12.The liub2'?Y of wheel 25 .projects in both directions along shaft 26`and forms bearings for a timing cam 28, a clutch cam 29 and a stopratchet 30. Timing cam 28 is lreyed to hub27.) Stop ratchet 30 isfixedly secured to clutch cam 29. Neither ratchet 30 nor cam 29 is fixedto hub 27 but are rotated by a stop 31 on wheel 25 which engages one endofanarcuately disposed compression spring 32 the other end of whichbears against one end `of an arcuate recess 33 in cam 29.

A. rocker shaft 34 parallels shaft 26, is journaled in frame 12 and hasan arm 35 keyed to it in line with cam 28, and a pawl 36 keyed to itinline with ratchet 30. A.

spring 37 pushes against pawl 36 so that the latter is in position toengage a tooth in ratchet 30 when same presents itself.

A lever 38 is pivoted at 39, its right hand end engaging a groove incollar 19 and its left hand end journaling a roller 40 alined with cam29. A rod 41 is secured to the roller end of lever 38 and extends up andis connected to a stop latch. 42 which is pivoted at 43 to a stationaryblock. The edge of platform 1 has radially disposed notches 44 at eachpartition adapted to receive latch 42 when alined therewith. A coilspring 45 pulls down on lever 38 and maintains contact of roller 40 andcam 29.

0pemtz'0n.-Motor 13, wheel 16, worm 24, wheel 25 and cam 28 rotatecontinuously. Wheel 25, through stop 31 and spring 32, tends to rotatecam 29 and ratchet 30 in a clockwise direction and so functions untilone of the teeth of the ratchet is engaged by pawl 36. This interruptsrotation of the ratchet and cam 29 and is the temporary positionindicated in Fig. 3. The pull of gf y v 1,431,019

spring holds collar 19 in itsupper position which` disengages the clutchelements 18 and 20 so there is no rotating tendency for shaft 9. i y.

Further rotation of wheel 25 compresses spring 32 and brings the rise oncarni 28 against the `roller on arm 35 which throws the latter, shaft 34and pawl136, thereby releasing ratchet 30. The energy stored in spring32 quickly moves cam 29 soy as to bringits rise underl roller 40,thereby raising theleft ha-nd end of lever 38 which releases theplatform from` latch 42 and engages clutch members 18 and 20.

Pawl 36 will engage the next tooth on ratchet 30y and hold: same and.cam4 29 in clutchengaging position until cam 28 again throws the vpawloutl of engagement with the ratchet whenv spring 32, having beencompressed again, will quickly move cam 29, shiftinglever 38and'disengaging the clutch. This cycle is-repeated as longy as thechanginfrl display is desired. i

Tt will'beunderstood thatthe gearing between wheely 16. and shaft" 2.6and between shaft 9 and the internal gear are so timed andirproportioned'. thatpartitions 2, 34 andf4 will be at proper positionswhen-the clutch is disengaged and latch 42 drops to lock the platform.This later device is to prevent momentum ofthe loaded platform andfrictioni between the various elements of the 'mechanism-from moving thedisplay except to install asingle display upon platform 1v andI torotate same constantly ori-intermittently. By securing lever 38 in.clutch engaging position the platform will'rotate co'ntinuously.

the respectiveelements in the commercial development of? my invention.

Ii claim 1'. In a display device, a rotatable platform, a shaftv gearedto same, a constantly rot'atingwheel journaled on said shaft and meansfor alternately'locking and unlocking said shaft to said wheel.

2. In a display. device, a rotatable vplatform, a shaft geared thereto,va drive wheel rotatably mounted thereon, clutch members on said shaftand said wheel and cam controlled' means driven by said wheel andadapted'to engage and disengage saidclutch members at predeterminedintervals.

3. The combination in a display device having a rotatably mountedplatform, of a constantly` rotating wheel, a shaft uponv whichsaid wheelis mounted, clutchv members on saidishaft' and said wheel, a cam drivenby said wheel and means controlled by said camff'or operating saidvclutch device.

^ 4. Incom'bination with a rotatable display platform, provided withradially disposed notches, mechanism` for intermittently rotating saidplatform,v a latch mounted adjacent the path of travel of` said notchesand means for engaging said latch with one of said notches when. saidplatform is stationary.

1n testimony whereof, I have hereunto subscribed` my name this 27 dayofV Feb.,

PETER J. MESSER.

